Clinical Trials

Phase NA Not yet recruiting

Colonic Neoplasms, Inflammation, Motor Activity

NCT07241585 2026-03-17

Vitamin D Effects on Immune Microenvironment of Nonmelanoma Skin Cancer After Photodynamic Therapy (PDT)

54 enrolled

Dermatologic

Carcinoma, Basal Cell, Carcinoma, Squamous Cell

NCT07465497 2026-03-12

Impact of Supplementation With Synbiotics and Prebiotics on Cognitive Decline Associated With Neoadjuvant Chemotherapy in First-line Patients With Breast Cancer

Phase NA Enrolling by invitation

80 enrolled

Chemotherapy-Related Cognitive Impairment, Breast Neoplasms

NCT07293910 2026-02-13

Vonoprazan vs Proton Pump Inhibitor With Vitamin D or Probiotics Based Triple Therapy for Eradication of Helicobacter Pylori Infection

Phase 2 Recruiting

66 enrolled

Helicobacter Infections

NCT05448365 2026-02-12

Vitamin D, Epigallocatechin Gallate, D-chiro-inositol and Vitamin B6 in Uterine Fibroid

Phase NA Recruiting

60 enrolled

Leiomyoma

NCT05036109 2026-02-10

DAILY: Vitamin D, Aspirin, ExercIse, Low Saturated Fat Foods StudY in Colorectal Cancer Patients With Minimal Residual Disease

16 enrolled

Colonic Neoplasms, Colorectal Neoplasms

NCT04871412 2026-01-30

POISE

Phase 3 Recruiting

20 enrolled

GastrointestinalThoracic

Psychological Well-Being, Esophageal Neoplasms, Lung Neoplasms, Motor Activity, Stomach Neoplasms

NCT05838716 2026-01-15

ViPER

Phase 3 Recruiting

240 enrolled

Prostatic Neoplasms

NCT01351805 2025-12-03

VITAL

25,871 enrolled 15 charts

Arthritis, Rheumatoid, Autoimmune Diseases, Osteoarthritis, Psoriasis

NCT07241247 2025-11-21

Evaluation the of Role of Vitamin D Supplement on Tumor Response, Inflammation and Apoptosis in Patients With Stage II or III Colorectal Cancer Receiving Chemotherapy.

Phase 4 Completed

44 enrolled

Colonic Neoplasms

NCT05016310 2025-07-23

A Study of High-Dose Vit D Versus Standard of Care Vit D Supplementation

7 enrolled

Phase NA Active not recruiting

Breast Neoplasms, Osteoporosis

NCT07042711 2025-06-29

Impact of Vitamin D on Therapeutic Respons in NPC Chemoradiated Patients

300 enrolled

Head & Neck

Nasopharyngeal Neoplasms

NCT01748448 2025-02-17

ViDMe

436 enrolled 16 charts

Dermatologic

Melanoma, Cutaneous Malignant

NCT04082650 2025-01-29

Vitamin D and Pregnancy Outcome in PCOS Patients

Phase EARLY_PHASE1 Completed

876 enrolled

Polycystic Ovary Syndrome

NCT03629717 2024-10-16

RANKL Inhibition and Breast Tissue Biomarkers

10 enrolled

Breast Neoplasms

NCT01224678 2024-10-08

Vitamin D and Breast Cancer Biomarkers in Female Patients

300 enrolled 6 charts

Breast Neoplasms

NCT00365105 2024-09-20

Zoledronate, Vitamin D, and Calcium With or Without Strontium 89 or Samarium 153 in Preventing or Delaying Bone Problems in Patients With Bone Metastases From Prostate Cancer, Lung Cancer, or Breast Cancer

BreastGenitourinaryThoracic

261 enrolled 12 charts

Breast Neoplasms, Carcinoma, Non-Small-Cell Lung, Lung Neoplasms, Neoplasm Metastasis, Pain, Prostatic Neoplasms

NCT03078855 2024-09-04

ILyAD

211 enrolled 13 charts

Phase EARLY_PHASE1 Completed

Lymphoma, Follicular, Leukemia, Lymphocytic, Chronic, B-Cell, Lymphoma, B-Cell, Marginal Zone

NCT04650880 2024-05-14

Effect of Vitamin D on Ovulation Rate in Women With Polycystic Ovary Syndrome

Phase NA Recruiting

220 enrolled

Anovulation, Polycystic Ovary Syndrome

NCT05331807 2024-05-08

Omega-3 and Vitamin D Supplementation in Breast Cancer Women

88 enrolled

Breast Cancer Female

NCT05950204 2023-07-18

Effect of Supplementation With ω-3 Fatty Acids, Vitamin D and Calcium in Patients With Acute Lymphoblastic Leukemia.

Phase NA Unknown

40 enrolled

Phase NA Not yet recruiting

Vitamin D Deficiency, Precursor Cell Lymphoblastic Leukemia-Lymphoma

NCT05887505 2023-06-06

Effects of Vitamin D Status and Multiple Mega-dose Supplementation on Health Care Disparities in Perioperative Patients With Hepatocellular Carcinoma Receiving Hepatectomy

120 enrolled

Carcinoma, Hepatocellular, Postoperative Complications

NCT03103152 2023-03-29

PROVENT

Phase 2/3 Completed

104 enrolled 14 charts

Prostatic Neoplasms

NCT05650151 2022-12-14

Peri-operative Vitamin D Therapy for Hepatectomy

Phase NA Unknown

200 enrolled

Carcinoma, Hepatocellular, Vitamin D Deficiency

NCT00396279 2022-11-08

Safety and Efficacy Study of Denosumab in Patients With Recurrent or Unresectable Giant Cell Tumor of Bone

37 enrolled 13 charts

Giant Cell Tumor of Bone

NCT04255576 2022-10-14

Efficacy and Safety of JMT103 in Patients With Giant Cell Tumor of Bone

Phase 1/2 Unknown

139 enrolled

Giant Cell Tumor of Bone

NCT03408119 2022-10-07

Dried Plums Prevent Inflammation And Improve Bone Health in Osteopenic Men

62 enrolled

Endocrine

Bone Diseases, Metabolic, Osteoporosis, Multiple Endocrine Neoplasia Type 1

NCT03883919 2022-10-05

Liposomal Irinotecan Plus 5-FU / LV Combined With Paricalcitol in Patients With Advanced Pancreatic Cancer Progressed on Gemcitabine-based Therapy

Phase 1 Completed

20 enrolled

Pancreatic Neoplasms

NCT05552729 2022-09-23

Effects of Different Doses of Vitamin D on Cancer-related Cognitive Impairment in Patients With Gastrointestinal Tumors

Phase 1/2 Unknown

114 enrolled

Gastrointestinal Neoplasms, Cognitive Dysfunction

NCT04197089 2022-08-03

VitDURO

Phase 4 Completed

2 enrolled

Carcinoma, Transitional Cell, Neoplasms

NCT04864431 2022-06-22

VitD

Phase NA Unknown

54 enrolled

Gynecologic

Carcinoma, Ovarian Epithelial, Cachexia

NCT01968590 2022-05-25

VitDBoneNF1

Phase 2 Terminated

26 enrolled

CNS

Neurofibromatosis 1

NCT01516216 2022-04-26

Study of Vitamin D in Untreated Metastatic Colorectal Cancer

139 enrolled 18 charts

Colorectal Neoplasms

NCT05340985 2022-04-22

Investigating the Effects of Hydroxyvitamin D3 on Multiple Sclerosis

Phase 4 Unknown

54 enrolled

Multiple Sclerosis, Relapsing-Remitting, Precursor Cell Lymphoblastic Leukemia-Lymphoma

NCT02865187 2022-03-25

Vit-D/PCOS

47 enrolled 8 charts

Other

Polycystic Ovary Syndrome, Sexual Dysfunction, Physiological

NCT00482157 2022-03-03

Calcitriol or Placebo in Men for Prostate Cancer Active Surveillance

Phase NA Withdrawn

Prostatic Neoplasms

NCT03520231 2021-11-23

Study Comparing Denosumab With Standard Treatment in Urothelial Cancer Patients With Bone Metastases

6 enrolled

Urinary Bladder Neoplasms, Carcinoma, Transitional Cell, Kidney Neoplasms, Ureteral Neoplasms

NCT01646437 2021-09-16

TIPS-3

7,793 enrolled

Cardiovascular Diseases, Neoplasms, Fractures, Bone

NCT03192059 2021-09-08

PRIMMO

43 enrolled

Gynecologic

Uterine Cervical Neoplasms, Uterine Neoplasms, Endometrial Neoplasms

NCT04916925 2021-06-08

Effect of Vitamin D Oral Supplementation in Poly Csytic Ovarian Women Resistant to Clomiphene Citrate

Phase 1/2 Unknown

100 enrolled

Polycystic Ovary Syndrome, Vitamin D Deficiency

NCT02186015 2021-05-14

SAFE-D

43 enrolled 17 charts

Breast Neoplasms

NCT04166253 2021-02-03

VDDOXO

100 enrolled

Breast Neoplasms

NCT00452439 2020-12-28

A Study of Actonel for the Prevention of Bone Loss

72 enrolled 8 charts

Bone Diseases, Metabolic, Leukemia, Lymphoma, Osteoporosis, Precursor Cell Lymphoblastic Leukemia-Lymphoma

NCT03144128 2020-10-14

Vitamin D for Muscle Metabolic Function in Cancer Cachexia

1 enrolled

Vitamin D Deficiency

NCT01317940 2020-07-08

Nutrition and Body Composition in Acute Lymphoblastic Leukemia

LymphoidOtherOther hematologic neoplasm

76 enrolled 14 charts

Leukemia, Obesity, Vitamin D Deficiency, Precursor Cell Lymphoblastic Leukemia-Lymphoma

NCT00079001 2020-05-12

Zoledronate in Preventing Skeletal (Bone)-Related Events in Men Who Are Receiving Androgen Deprivation Therapy For Prostate Cancer and Bone Metastases

645 enrolled 13 charts